Shock absorber



y 22 wm. M0223@ J. BOCKWITZ SHOCK BSORBER Filed OCT.. 2l. 1921 2Sheets-Sheet l mmm@ 'l A f INVENTOR.

ff if@ WM? Patented July ZZ, 1924.

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Application ala october 21, 192i. serial No. 509,413.

To all whom t may concern Be it known that I, ANDREW J. Bocmvrrz, acitizen of the United States, residing at Twin Falls, in the countyof'TwinFalls and State of Idaho, have invented new and usefulImprovements in Shock Absorbers, of which the following is aspecification.

This invention relates to shock-absorbers for vehicles and the objectthereof is to give more resiliency on the downward motion of the mainspring and body of the vehicle, and to absorb and prevent the abrupt upward motion of the main vehicle spring and body.

A further object of the invention is the provision of means for thevarious forms and lengths of the shock-absorber arms and springssuitable for their various construction and uses without altering theprinciple of the invention.

Further objects of the invention will appear as the specific descriptionwhich follows is read in connection with the accompanying drawingsforming a part of this specification and in which Figure 1 showsapplication of one form of shock-absorber applied.

Figure 2 is an end view.

Figure 3 is an end view.

Figure 4 is a side view.

Figure 5 is a top view of Figure 4.

Figure 6 is a side view.

Figure 7 is a side view.

Figure 8 is a top view of Figure 7.

Figure 9 is a diagonal end view.

Figure 10 is a diagonal end view.

Referring more especially to the drawing of Figure 1 represents the axlehousing, 16 the spring perch, 17 means for oiling bearing and bolt at23. 18 means for connecting spring perch to axle housino', 19 is mainvehicle spring, 2O is shock-absorber arm one end pivotally connectingwith spring perch and opposite end to shockabsorber spring. 21 isshock-absorber arm pivotally connected at one end with main vehiclespring and opposite end to shockabsorber spring. 22 is hole and meansfor pivotally connecting shockabsorber arms 2O and v21 with bolt orrivet. 23 is hole and means for pivotally connecting shock-absorber armto spring perch 16. 24 is hole and means for pivotally connectingshockabsorber arm 21 to main spring 19. 25 is hole or means forconnecting end of shockabsorber arm 20 to shock-absorber spring 27.

y 26 is hole or means for connecting end of shock-absorber...arm 21y toshock-absorber spring 27.."27 is a coil spring of suitable size andlength connected at either end with arms 20 andv 21 V'for absorbing anyabrupt action to main spring 19 and vehicle body.

Figure 2 shows manner of connecting shock-absorber arms 2O to springperch 16.

Figure 3 shows manner of connect-ing shock-absorber arms 21 to end ofmain, vehicle spring 19.

Figure 4 shows one form of constructing arms 2O and 21, having thedistance less between points 24 and 22 of arm 21 than between points 23and 22 of arm 20, in this construction as is alsoshown in Figure 1 theupward motion is partly absorbed by coil spring 27, but principally bythe increased strain in main leaf spring 19 in the direction of 24, andthis point being below the center or pivotal point 22 causes a lockingand absorbing action to any upward movement of main spring 19, inconnection with any slight movement in spring 19 will cause a pivotalaction at points 28 and 24, thus creating a floating eect tothe vehiclebody when in motion. ,i

Figure 5 isa top view oflarms 20 and 21 as in Figure 4`showinginterlapping of arms 20 and 21.

Figure 6 arms 20 and 21 being of equal length, in this constructionthere is more resiliency than in Figure 4 with less absorpe tion inupward movement of main vehicle spring and body as in Figure 4 andFigure 1; however any movement of main vehicle spring causes a pivotalaction at points 28 and 24.

. Figure 7 arms 20 and 21 overlap otherwise functions are about the sameas in Figure 6.

Figure 8 is top viewvof Figure 7 showing overlapping of arms 20 and 21.

Figure 9 shows 'form connecting and making one end of arms 2O solidwhile not shown same construction can be used in making arms 21.

Figure 10 shows form of making arms 20 single, arms 21 can be alsoy madesingle as shown in Figure 1.

It is to be understood that the coil shockabsorber springs to be ofsuitable metal, size and length and that shoclnabsorber arms may beeither made single or double or made solid at one end, either arm mayvary in length or contour from that shown in drawings without alteringthe principle of the invention and that same may be used in combinationwith two springs, spring and perch spring and axle or body and axle orbetween two suitable parts of any kind of vehicle or implement.

I-Iaving thus described my invention what I claim is In combination witha spring, axlehousing andl spring perch7 a shockabsorberhavingvpivotally connected cross arms of Vunequal lengthsbetween points where said .armspivotally connect together and where theypivotally connect with the spring perch and pivotally connect to themain vehicle spring'7 a tension coil spring connecting the Oppositeendsof said pivoted arrns, said construction absorbing and preventing anyabrupt upward motion o the main spring and vehicle body.

' In testimony whereof I affix my signature in presence of twowitnesses.

ANDREW J'. BOCKVVITZ. Inepresencek ofn GRAFTON I-I. SELF, GEo'RGnBRISTOL.

